Mathematical fact: 7552 is the number of arrangements of 6 non-attacking queens on a 10×6 chessboard.
Trivia: 7552 is a boring number.
Historical date: September 3rd is the day in 1999 that an 87-automobile pile-up happens on Highway 401 freeway just East of Windsor, Ontario, Canada after an unusually thick fog from Lake St. Clair.